Owensboro, Kentucky.
Owensboro, Kentucky, may be another surprising entry on this list, but according to Ellie Mae, in 2015, millennials made up 48% of homebuyers in this riverside town of 60,000.
Owensboro is within a few hours driving of Nashville, Louisville, and St. Louis, perhaps adding to its appeal.
Athens, Ohio
There are only six towns in America where millennials make up more than half of the homebuyers.
Athens, Ohio, home to Ohio University, is one of them, with millennials closing 59% of mortgages there, according to mortgage data firm Ellie Mae.
Pittsburgh, Pennsylvania
Pittsburgh's millennial population is growing at the same rate as Austin's, at 6.6% from 2010 to 2015.
Austin, Texas
Long considered a cultural hub for young people, Austin's millennial population continues to grow, rising 6.6% in five years, according to RCLCO.
Memphis, Tennessee
The population of millennials shot up 9.5% in Memphis between 2010 and 2015, according to RCLCO.
New Orleans, Louisiana
New Orleans' millennial population grew by more than 5,000 people from 2010 to 2015, an increase of 8.5%, according to RCLCO.
Fargo, North Dakota
Believe it or not, chilly Fargo, North Dakota, saw a surprisingly large boost to its millennial population, adding 5,000 in 2015.
Norfolk-Virginia Beach, Virginia
The Norfolk-Virginia Beach metropolitan area saw the largest uptick as a percentage of its population. The area's metropolitan population grew by 16% from 2010 to 2015, according to RCLCO.
The region has worked hard to attract younger people, revamping city centers, developing new restaurants and launching a light rail in Norfolk in 2011.
Oakland, California
About 7,500 more millennials moved to Oakland in 2015 than left the city, according to SmartAsset.
Seattle, Washington
Seattle gained more millennials than any other city on the west coast, adding about 10,000 to its population in 2015.
Charlotte, North Carolina
The millennial population of Charlotte, the biggest city in North Carolina, grew by nearly 11,000 in 2015, the latest year for which there is data.